test: specialize OOM check for AIX
Assumption that if memory can be malloc()ed it can be used is not true on AIX. Later access of the allocated pages can trigger SIGKILL if there are insufficient VM pages.
Use psdanger() to better estimate available memory.
Fixes: https://github.com/nodejs/build/issues/1849
More info:
- https://www.ibm.com/support/knowledgecenter/en/ssw_aix_71/generalprogramming/sys_mem_alloc.html
- https://www.ibm.com/support/knowledgecenter/en/ssw_aix_71/p_bostechref/psdanger.html
Related to:
- https://github.com/nodejs/build/issues/1820#issuecomment-505998851
- https://github.com/nodejs/node/pull/28469
- https://github.com/nodejs/node/pull/28516
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
tests and/or benchmarks are included -
documentation is changed or added -
commit message follows commit guidelines